robin082006
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C ) The population of Community B is younger than the population of Community A
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| vanshita
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robin if possible can u please explain answer thank you
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| r_albayunen
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d?
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| damngood
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yea C
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| vradojc1
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similar q in A&L Review book
q700
Crude mortality for disease X is total mortality in the population. Since age-adjusted mortalities are the same (and for CAD the specific mortality is the highest in the older age groups) the only possible explanation is that there are more older people (higher CAD mortality) in group A contributing more to the crude/overall CAD mortality.
Example:
Both groups have population of 100
A has 80 older
B has 20 older
crude rates for older are e.g. 50/100 and for younger 1/100
As follows:
a) in group A there will be 40 dead from CAD in older group and 0.2 in younger (that is 0)
b) group B will have 10 in older and 0.8 (1) in younger.
Totals in A there will be 50 dead from CAD per 100 (crude mortality 50)
In group B it will be 11.
Still, age-adjusted mortalities are the same.
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| vradojc1
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One could say that question doesn't give us age-adjusted mortality rates for CAD. But test expects you to know public health issues.
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